Patent
   D322317
Priority
Jun 22 1989
Filed
Jun 22 1989
Issued
Dec 10 1991
Expiry
Dec 10 2005
Assg.orig
Entity
unknown
12
12
n/a
The ornamental design for a syringe plunger, as shown and described.

FIG. 1 is a perspective view of a syringe plunger, showing my new design, the broken line showing of the barrel is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a bottom plan view thereof.

Fischer, Dan E.

Patent Priority Assignee Title
6283946, Dec 06 1999 Ultradent Products, Inc. Long stem syringe apparatus for dispensing compositions and related methods
6398763, Feb 16 2000 Ultradent Products, Inc. Syringe apparatus having a plunger tip with a flexible spring lever
6540072, Dec 06 1999 Ultradent Products, Inc. Syringe set rack system and related methods
8647115, Feb 13 2009 SOLVENTUM INTELLECTUAL PROPERTIES COMPANY Syringes for dispensing multi-component material
D605757, Mar 24 2006 Covidien AG Injection device
D669170, Mar 28 2011 SOLVENTUM INTELLECTUAL PROPERTIES COMPANY Dental syringe
D679810, Mar 28 2011 SOLVENTUM INTELLECTUAL PROPERTIES COMPANY Dental syringe
D819203, Nov 02 2016 Becton Dickinson France Syringe plunger
D973871, Oct 30 2020 Merz Pharma GmbH & Co. KGaA Pushrod
D973872, Oct 30 2020 Merz Pharma GmbH & Co. KGaA Pushrod
ER1765,
ER339,
Patent Priority Assignee Title
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2812763,
3026872,
3255752,
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3306291,
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3738539,
3766918,
4201209, May 24 1978 DEVICE DEVELOPMENTS, INC, A CORP OF NV Molded hypodermic plunger with integral shaft and elastomeric head
4645488, Aug 12 1982 UAB RESEARCH FOUNDATION, THE, NON-PROFIT CORP Syringe for extrusion of wetted, particulate material
4708270, Mar 16 1983 Loctite Corporation Dripless syringe
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jun 22 1989Ultradent Products, Inc.(assignment on the face of the patent)
Jun 22 1989FISCHER, DAN E Ultradent Products, INCASSIGNMENT OF ASSIGNORS INTEREST 0050950669 pdf
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